Clean studio character reference sheet, split composition on a single neutral solid gray background, three views of the same young adult mixed-breed dog with strong Jack Russell Terrier traits (small, low-to-the-ground compact build, short legs, sturdy body — NOT a tall or leggy dog), adopted street dog appearance, photographed like a real DSLR portrait session, not a rendered turnaround: (1) left side — close-up front-facing portrait of the head and shoulders, warm brown expressive eyes, clear and healthy (not cloudy, not milky, not blind-looking) with a slight natural asymmetry (one eye a touch softer/droopier than the other), one ear standing up and one ear folded down, mouth slightly open in a relaxed half-smile with one visible gap where a lower tooth is missing on one side, giving it a lopsided endearing look, teeth naturally healthy but not uniformly white or catalog-perfect, young and energetic looking — not an old or sickly dog, wearing a light blue fabric collar with a small bone-shaped tag hanging from it; (2) center — full-body side-view profile, standing naturally, compact Jack Russell-like proportions with short legs close to the ground, alert posture, mouth closed or barely parted, tail slightly curved upward mid-motion, light blue collar with bone tag visible at the neck; (3) right side — three-quarter angle full-body view, lively walking pose, short legs clearly visible, head turned slightly toward camera, same gap-toothed lopsided grin as view 1 but caught mid-motion, not posed identically, collar and tag visible. Coat: short smooth fur close to the body, tiger-stripe brindle pattern clearly visible within the brown/tan patches (not solid flat tan), mixed with cream patches (cream instead of pure white), realistically maintained but not artificially perfect — a few loose flyaway hairs, subtle natural cowlicks behind the ears and along the spine, individual hair strands visible and catching light unevenly, matte fur texture (not glossy or plastic-looking). Lighting: single soft directional key light from upper camera-left, as in a real photography studio setup — visible soft shadow falloff under the chin, ears, and legs, subtle specular highlight only on the wet nose and eye catch-lights, rest of the coat lit unevenly and naturally, not flat or shadowless. Shot on an 85mm portrait lens look, shallow falloff, natural warm-neutral color grading (not sterile/neutral). Photorealistic, high-detail short fur texture with individual strand definition, matte nose with subtle natural texture (not glossy render highlight), same dog identity, same compact Jack Russell-like body proportions, same coat pattern, same collar and tag, same markings in every view — but natural pose-to-pose variation in expression and light, not identical copies. No text, no labels, no watermarks on the sheet. Reference image guidance: use reference image A (the brindle-and-white Jack Russell being held on a countertop, panting with mouth open) only for overall breed identity and body proportions — the compact head shape, ear set, leg length, torso build, and coat color pattern. Do NOT copy its open-mouth panting/tongue-out expression, its exact fur markings, the person in the photo, or the background. Use reference image B (the close-up muzzle shot with the relaxed half-smile, gap in the lower teeth) only for the style of the gap-toothed lopsided smile expression — the soft squint of the eyes, the relaxed mouth position, the way the lower teeth show slightly to one side. Do NOT copy its coat color, its breed head shape, its markings, or its eye color.